Once found along the entire Pacific Northwest coast, the Oregon silverspot butterfly now survives in only a few isolated ...

According to the zoo, “Early blue violets are the main food source for the silverspot caterpillars as they mature into adult ...

The Oregon Zoo says it welcomed 25 Pacific lamprey last week. The eerie-looking eels are part of a larger effort to restore ...

The Melbourne Zoo in Australia shares footage of the most adorable pygmy hippo taking its first swim in the big pool with its ...

Oregon Zoo has welcomed 25 rare Pacific lamprey – a 400-million-year-old species native to the Pacific Northwest. The effort is part of a tribal-led initiative to restore lamprey populations above ...

The Oregon Zoo has welcomed a group of 25 Pacific lamprey, in effort to restore the population of one of the Pacific ...

Noah’s Ark crashed into American agriculture—almost. In what ranks among the wildest plans ever hatched by the federal government, hippos were once on the cusp of introduction to U.S. rivers, lakes, ...